An energy sober network for a sustainable Society

This research chair is held by CentraleSupélec and funded by Orange, with the participation of Université Paris-Saclay, CNRS, and CentraleSupélec Foundation. It aims to promote innovation and academic research into designing and managing sustainable, low-energy 6G networks. It will draw on the scientific expertise of the Laboratory of Signals and Systems (L2S), which combines the fundamental and applied mathematical aspects of control theory, and information and communication theory.

News

Events and papers

Papers

Our paper, entitled « Constrained Online Convex Optimization with Memory and Predictions » has been accepted at AAAI conference , Singapore, Januray 2026.
Our paper, entitled « Goal-Oriented Resource Allocation and Scheduling for Integrated Sensing and Communications » has been accepted at IEEE Globecom , Taipei, December 2025.
Our paper, entitled « Optimistic Constrained Online Convex Optimization for Resource Reservation in Tactile Internet » has been accepted at IEEE Globecom , Taipei, December 2025.
Our paper, entitled « Data-Driven Context-Aware Traffic Prediction and Modeling for Tactile Internet » has been presented at IEEE European Wireless , Sophia Antipolis, October 2025.
Our paper, entitled « A queuing model for short time scale sleep mode evaluation in 5G base stations » has been presented at IEEE MEDITCOM , Nice, July 2025.
Our paper, entitled « Large Language Models for Spatio-Temporal Mobile Traffic Predictions » has been presented at IEEE MEDITCOM workshop on Next-Gen Networks , Nice, July 2025.
Our paper, entitled « Energy efficiency in O-RAN through sleep modes » has been presented at IEEE ICC, Montreal, June 2025.
Our paper, entitled « Network control for ensuring haptic service performance in 5G/6G networks » has been presented at IEEE ICC, Montreal, June 2025.
Our paper, entitled « Goal-Oriented Communications for federated learning in mobile networks » has been presented at IEEE GIIS, Dubai, February 2025.
Our paper, entitled « Optimal Resource Allocation for the Transport of Multi-Modal Visual-Haptic Metaverse Flows in 5G » has been presented at IEEE WCNC, Milano, March 2025.
Our paper, entitled « AoI-based switching control for safe haptic teleoperation over a wireless network« has been presented at IEEE CDC, Milano, December 2024.
Our paper, entitled « Optimal multi-connectivity strategies for delay-sensitive industrial IoT traffic » has been presented at IEEE Globecom, Cape Town, December 2024.
Our paper, entitled « Radio Resource Allocation for Extreme URLLC Under Partial Knowledge of Arrival Distributions » has been presented at IEEE PIMRC, Valencia, September 2024.
Our paper, entitled « Goal-Oriented Communications for Distributed Sensing: a joint scheduling and estimation approach » has been presented at IEEE VTC-Spring, Singapore, June 2024.
Our paper, entitled « Performance modeling and dimensioning of latency-critical traffic in 5G networks » has been presented at IEEE Globecom, Kuala Lampur, December 2023.
Our paper, entitled « For an energy sober network that contributes to a sustainable society » has been presented remotely at IEEE Future Networks World Forum, Baltimore, November 2023. Slides: FNWF23-EL AYOUBI

Events and press releases

Salah El Ayoubi presented the chair vision on sustainable 6G during a Café Science on November 6, 2025. The slides can be found here.
Salah El Ayoubi presented the chair vision on sustainable 6G and goal-oriented communications during a seminar at the University of Padova on October 31, 2025. Many thanks to Prof. Leonardo Badia for organizing the seminar and hosting the visit.
Salah El Ayoubi presented the chair vision on sustainable 6G during a seminar at the University of Bologna on October 27, 2025. Many thanks to Prof. Jocelyne Elias and Prof. Fabio Martignon for organizing the seminar and hosting the visit.
The chair organized a workshop on sustainable 6G networks on May 15, 2025, with the participation of eminent researchers from France and UK.
The chair has been launched on September 13, 2023, by Estelle Iacona, president of Université Paris Saclay, Jean-Bolot, SVP Research, Orange Innovation, Jean-Luc Moullet, Deputy CEO for innovation at CNRS, and Paul-Henry-Cournède, Dean of research at CentraleSupélec.
See the article about the chair in CNRS innovation letter of octobre 2023.

People

Current and former chair members

The chair is held by Salah Eddine El Ayoubi, Professor at CentraleSupélec.

The chair collaborates with eminent researchers at L2S, including Alexis Aravanis, Maxime Ferreira and Michel Kieffer.

Post docs

Hiba Hojeij, working on energy savings in O-RAN, in collaboration with Salah El Ayoubi, Alexis Aravanis, and Sahar Hoteit
Jean-Baptiste Monteil, working on energy minimization in 6G networks, in collaboration with Salah El Ayoubi and Alexis Aravanis. December 2023-March 2025

PhD students

Jiayi Wu, working on Sustainable Economic Models for Networks Design-to-Impact, co-supervised by Salah El Ayoubi and Pascal Da Costa, Berna Sayrac and Azeddine Gati (Orange).
Nizar Choubik, working on AI for energy efficient 6G networks, co-supervised by Alexis Aravanis, and Sahar Hoteit.
Ryad Madi, working on LLMs for energy savings in 6G networks, co-supervised by Salah El Ayoubi and Michel Kieffer.
Idriss Merah, working on network design to impact, co-supervised by Salah El Ayoubi, Michel Kieffer, Thierry Clessienne and Berna Sayrac (Orange).
Hamza Abbar, working on energy savings in the RAN of 5G/6G networks, co-supervised by Salah El Ayoubi, Imed Hadj Kacem and Maroua Drissi (Orange)
Younes Mehloul, working on intention-based management of 6G networks, co-supervised by Salah El Ayoubi, Alexis Aravanis and Sihem Cherrared (Orange)
Duy Tran, working on goal-oriented communications in 6G networks, co-supervised by Salah El Ayoubi, Maxime Ferreira and Linh Trung Nguyen from Vietnam National University.
Yu Yeh, working on the joint design of communications and control for haptic 6G networks, in collaboration with DN TOAST, co-supervised by Salah El Ayoubi and Vineeth Varma from CRAN.
Joseph Gabet, working on inverse problems in wireless networks, with application to energy reduction, co-supervised by Maxime Ferreira and Charles Soussen.

Interns

Rania Chrighui (CentraleSupélec) working on sleep mode for 5G carriers, June-November 2025.
Franck Kouassi (ENSTA) working on Stochastic Matching with multiple clients per server , June-August 2025.
Ryad Madi (ENSEEIHT) working on traffic predictions for energy savings, April-September 2024.
Lucas Costafreda (Universitat Politecnica De Catalunya), working on goal-oriented communications for federated learning, February-June 2024.

Open positions

We have PhD and post doc opportunities. Do not hesitate to contact us.

Sustainable 6G research chair